See the SIFT method in practice HERE (the link from the end of the video above)
What T&W students shared about looking at sources:
Experts can be more than just FAMOUS or ACADEMIC people, depending on the topic
Aesthetics matter - if a source / website looks bad, could be less reliable
Read reviews, good and bad ones compare with facts / data where possible
Look at more than one site for the same item or fact
*****KNOW WHAT YOU'RE LOOKING FOR******
*****READ THE DETAILS******